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gyro/core/view/widgets/sorter.widget.php

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<?php
/**
 * Prints sorting controls
 * 
 * @author Gerd Riesselmann
 * @ingroup View
 */
class WidgetSorter implements IWidget {
        const DONT_INDEX_SORTED = 2048;
        const DONT_CHANGE_TITLE = 4096;
        
        public $data;
        
        public static function output($data, $policy = self::NONE) {
                $w = new WidgetSorter($data);
                return $w->render($policy);
        }
        
        public function __construct($data) {
                $this->data = $data;
        }
        
        public function render($policy = self::NONE) {
                if (Arr::get_item($this->data, 'columns_total', 0) < 2) {
                        return '';
                }
                
                $policy = $policy | ($this->data['policy'] * 2048); // Compatability

                $view = ViewFactory::create_view(IViewFactory::MESSAGE, 'widgets/sorter.meta');
                $view->assign('sorter_data', $this->data);
                $view->assign('page_data', $this->data['page_data']);
                $view->assign('policy', $policy);
                $view->render(); // this view should not return anything! 
                                
                $view = ViewFactory::create_view(IViewFactory::MESSAGE, 'core::widgets/sorter');
                $view->assign('sorter_data', $this->data);
                $view->assign('page_data', $this->data['page_data']);
                $view->assign('policy', $policy);
                return $view->render();
        }
}

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